KR102124251B1 - 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법 및 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등 - Google Patents
폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법 및 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등 Download PDFInfo
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- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 82
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- 238000000576 coating method Methods 0.000 title claims abstract description 67
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- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910001930 tungsten oxide Inorganic materials 0.000 title claims abstract description 37
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- 159000000002 lithium salts Chemical class 0.000 description 1
- PNEHEYIOYAJHPI-UHFFFAOYSA-N lithium tungsten Chemical compound [Li].[W] PNEHEYIOYAJHPI-UHFFFAOYSA-N 0.000 description 1
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Abstract
구체적으로, 신호등 표면인 폴리카보네이트를 친수성으로 기능기화시키고, 인터칼레이션 방법으로 박리시킨 텅스텐 옥사이드(WO3)를 기능기화시킴으로써, 폴리카보네이트와 텅스텐 옥사이드(WO3)의 결합성을 상승시키고,
아울러, 친수성으로 기능기화된 폴리카보네이트를 퍼하이드로실라잔 용액에 신속코팅시켜 실리콘(SiO2) 부착층을 형성하는 한편, 기능기화된 텅스텐 옥사이드(WO3)를 분말화시켜 액상혼합하여 준비된 텅스텐 옥사이드(WO3) 분말 수용액에, 퍼하이드로실라잔 용액에 신속코팅시킨 폴리카보네이트를 코팅시킴으로써,
종래 분산, 증착 등의 코팅방법에 비해서 신속하게 다량으로 코팅 가능한, 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법에 관한 것이다.
이러한 텅스텐 옥사이드(WO3)를 신호등에 코팅시킴에 따라 야간에도 광촉매 효과를 갖을 수 있는데, 이는 신호등의 광(光)의 역시 가시광이기 때문에 야간에도 신호등의 광(光)으로 광촉매가 가능할 것으로 기대된다.
Description
또한, 상기 소혈청알부민(Bovine Serum Albumin ,BSA)은, pH 4의 산성도를 갖는 것을 특징으로 한다.
도 2는 본 발명에 따른 소혈청알부민(Bovine Serum Albumin, BSA)와 텅스텐 옥사이드(WO3)의 제타 전위 실험결과를 나타낸 것이다.
도 3은 본 발명에 따른 텅스텐 옥사이드(WO3)의 시간별 메틸렌 블루의 분해 실험결과를 나타낸 것이다.
도 4는 본 발명에 따른 텅스텐 옥사이드(WO3)의 가공별 광촉매 특성 실험결과를 나타낸 것이다.
Claims (7)
- 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드(WO3)를 코팅하는 방법에 있어서,
상기 방법은, O2 플라즈마 처리 단계, SiO2 부착층 형성단계, 텅스텐 옥사이드(WO3) 분말 수용액 제조단계 및 신속 코팅단계를 포함하고,
상기 텅스텐 옥사이드(WO3) 분말 수용액 제조단계는,
탈이온수(Di-water)에 소혈청알부민(Bovine Serum Albumin ,BSA)을 용해시키는 단계;
텅스텐 옥사이드(WO3)를 분쇄시켜 분말로 제조하는 단계;
상기 탈이온수(Di-water)에 소혈청알부민(Bovine Serum Albumin ,BSA)을 용해시키는 단계 및 텅스텐 옥사이드(WO3)를 분쇄시켜 분말로 제조하는 단계까지 모두 완료된 뒤 수행되는, 용해액에 텅스텐 옥사이드(WO3) 분말을 혼합하여 혼합액으로 준비하는 단계; 및
상기 용해액에 텅스텐 옥사이드(WO3) 분말을 함유시켜 혼합액을 준비하는 단계에서 준비된 혼합액에 음파를 인가하여 음파처리(sonication)를 수행하는 단계;를 포함하여 이루어지는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
- 청구항 1에 있어서,
상기 O2 플라즈마 처리 단계에서,
폴리카보네이트에 O2 플라즈마 처리를 하여 폴리카보네이트의 표면을 친수성으로 기능기화하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
- 청구항 2에 있어서,
SiO2 부착층 형성단계에서는,
상기 O2 플라즈마 처리 단계에서 처리된 폴리카보네이트를 퍼하이드로폴리실리잔 용액에 침지(dip) 코팅방법을 통해 SiO2 부착층을 형성하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
- 청구항 2에 있어서,
SiO2 부착층 형성단계에서는,
상기 O2 플라즈마 처리 단계에서 처리된 폴리카보네이트를 퍼하이드로폴리실리잔 용액에 바(bar) 코팅방법을 통해 SiO2 부착층을 형성하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
- 청구항 3에 있어서,
상기 신속 코팅단계는,
SiO2 부착층 형성단계에서 SiO2 부착층이 형성된 폴리카보네이트와, 텅스텐 옥사이드(WO3) 분말 수용액 제조단계에서 제조된 텅스텐 옥사이드(WO3) 분말 수용액을 이용하여 코팅을 수행하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
- 청구항 1에 있어서,
상기 소혈청알부민(Bovine Serum Albumin ,BSA)은,
pH 4의 산성도를 갖는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
- 청구항 1 내지 6 중 어느 하나의 항에 기재된 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법에 의해 코팅된 것을 특징으로 하는, 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등.
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